The fastest way to find the serial number on an HP laptop running Windows 10 is to press Fn + Esc (or Ctrl + Alt + S on some models), which opens the HP System Information window with the serial number, product number, and model. You can also open PowerShell and run (Get-CimInstance Win32_BIOS).SerialNumber, or check the label on the bottom of the laptop or inside the battery compartment.
Method 1: HP System Information shortcut
- Press Fn + Esc on your HP laptop. On some business models, press Ctrl + Alt + S.
- The System Information window shows the Product Name, Product Number, and Serial Number.
This shortcut needs HP’s system software to be installed. If nothing happens, use one of the other methods.
Method 2: PowerShell or Command Prompt
- Right-click Start and choose Windows PowerShell.
- Type
(Get-CimInstance Win32_BIOS).SerialNumberand press Enter.
In Command Prompt on older Windows 10 versions, wmic bios get serialnumber also works.
Method 3: Check the label
- Turn the laptop over and look for a label with S/N or Serial.
- On older models, remove the battery and check the battery compartment.
- Some newer models print the serial number in small text on the bottom case instead of using a sticker.
Method 4: HP Support Assistant or the BIOS
- HP Support Assistant: Open the app (it’s preinstalled on most HP laptops). The serial number appears on the My devices tile.
- BIOS: Restart and press Esc, then F1 for System Information, or F10 for BIOS Setup. The serial number is listed on the main page.
Why you need your serial number
- Checking your warranty on HP’s support website.
- Finding the exact drivers and manuals for your model.
- Contacting HP Support or registering the laptop.
The product number (like 2L8W9UA) identifies your model configuration, while the serial number is unique to your laptop.
Frequently asked questions
What does an HP serial number look like?
It’s usually 10 characters, mixing letters and numbers, like 5CD1234ABC.
Can I find my HP serial number without turning the laptop on?
Yes. Check the label on the bottom, the original box, or your purchase receipt.
Why does the command show “To be filled by O.E.M.”?
The serial number wasn’t stored in the firmware, which can happen after a motherboard replacement. Check the label or contact HP.
Does this work on Windows 11?
Yes. All of these methods work on Windows 11 HP laptops.
Kermit Matthews runs Live2Tech from just outside Philadelphia. He started on a university help desk, spent years as the IT person for small businesses, and has been writing tech guides full time since 2020. Each guide is checked on a device he owns, and re-checked when a menu moves. More about Kermit.